| 摘要 |
The multi-chamber carburizing apparatus results in a continuous process including a heating furnace having inlet door means through which, when open, work is fed into the furnace, a carburizing furnace connected thereto, interconnecting double door means between the heating furnace and the carburizing furnace through which, when open, work is fed from the heating furnace into the carburizing furnace, a diffusion furnace, interconnecting double door means between the carburizing furnace and diffusion furnace through which, when open, work is fed from the carburizing furnace into the diffusion furnace, and a cooling chamber which may be a water cooled section or an oil quench tank having inlet door means through which, when open, work is fed from the diffusion furnace into the cooling chamber, or quench tank. The double door means have a space therebetween which may be filled with a neutral or other gas to act as a barrier between the furnaces. Gas passageways are provided beneath the various door means for flow of gas from the various furnaces at a controlled rate.
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